Machine for unhairing



- N 0 Model.) 2 Sheets-Sheet 1. A. E. WHITNEY.

MACHINE FOR UNHAIRING, SGOURING, AND FLESHING HIDES.

No. 280,698. Patented July 3, 1883.

Wflmess es: Inventqr:

flrlhur E. mine ETERS. Phulmhthngnpher. Wnshlngiun. n c.

(No Model.) 2 Sheets-Sheet 2.

A. E. WHITNEY.

MACHINE FOR UNHAIRING, SGOURING, AND PLESHING HIDES. No. 280,698.Patented'July 3, 1883.

' Witnesses:

UNITED STATES PATENT ()rricti.

ARTHUR E. \VHITNEY, VIN CHESTER, MASSACHUSETTS.

MACHINE FOR UNHAIRING, SCOURING, AND FLESHING HIDES.

SPECIFICATION forming part of Letters'Patent No. 280,698, dated July 3,1883,

(No model.)

Skins, of which the following, taken in connection with the accompanyingdrawings, is a a specification.

My invention relates to that class of unhairing and scouring machines inwhich the hide or's'kin is passed between pressure feed-rolls,

and between a bed-roll and a cylinder pro vi ded with a series ofradiating blades, the edges of which act upon the hide or skin to removethe hair or rub and scour the surface; and one portion of my inventionis especially applicable to that class of such machines in which thebladed cylinder co-operates with a pressure bed-roll to remove thehairfronrthe hide or skin and rub or scour the same, said pressurebed-roll also serving as one of the pair of feed-rolls, the whole beingso arranged that the hide or skin passes between said bed roll and thefeed-roll in a horizontal or nearly horizontal direction, is'passedpartially around said bed-roll and between it and the knife-cylinder ina downward or nearly vertical direction; and it consists in a novelarrangmentof devices for moving the feedroll away from the bed-rollsimultaneously with a similar move ment of the bed-roll away from thebladed or knife cylinder.

Figure 1 of the drawings is a plan of a machine embodying my invention.Fig. 2 is a vertical transverse section on line 00 w on Fig. 1, and Fig.3 is a partial vertical transverse Section on line y y on Fig. 1.

A A are the end frames of the machine, con nected together by thetiegirts B B, and having mounted in fixed bearings thereon the cylinderO, which has cast thereon a series of spiral radiating ribs, (0 a, andalso having fitted to suitable housings therein the movable boxes I; band c c. The boxes I) b are arranged in horizontal slots or housings,and have mounted therein the bed-roll D, provided with a covering ofrubber or other elastic material, said'bed-roll having its axis in thesame horizontal plane as the axis of the cylinder 0, toward which it ispressed by two springs, d, only one of which is shown in the drawings,

the tension of said springs (Z being regulated by means of theset-screws E in a well-known manner. The boxes 0 c are fitted to movevertically in slots 0 c, and have mounted therein the feed roll F,pressed downward by two springs, e 6, only one of which is shown in thedrawings, into contact with the upper side of the bed-roll D, thetension of the springs e 6 being regulated by the set-screws F in awellknown manner.

Motion is imparted to the cylinder 0 by means of the driving-pulley Gand a suitable belt, (not shown,) and motion is imparted to the bed-rolland feed-roll by means of the belt H and suitable pulleys and gears in awellknown manner.

I I are steel blades bent or otherwise fitted to conform'to the sides ofthe ribs a a, and secured thereto by screws, as shown in Figs. 1 and 2;or they may be riveted thereon.-

It often happens, in working hides or skins by machinery, that, owing tosome inequality in the thickness of the skin, or from other causes, itbecomes necessary to change the position of the skin in the machine, todo which it is necessary to lift the feed-roll, or, in other words, toseparate the two pressure-rolls which feed the skin through the machine,which, if done, stops the feed of the skin, and if the knife-cylindercontinues to revolve in contact with the skin, if only for an instant,it is very likely to injure it by burning or heating it. To avoid this Iapply to the machine two levers, J J, pivoted one to the inside of eachframe A, and connected together at their front ends by the treadle-boardJ, as shown in Fig. 1. These levers J engage at their rear ends with thelower ends of two vertical rods or bars, K, (only one of which is shownin the drawings,) the upper ends of which are so arranged and shapedthat the boxes 0 0 rest thereon, and may be moved upward thereby.

The rods or bars Kare guided at their up per ends in bearings L, and areeach provided with a lug or pin, f, projecting therefrom, which engageswith the under side of the horizontal arm of the elbow-lever M, pivotedat. g to the frame A, as shown in Figs. 2 and 3.

The arm h of the lever M projects upward from its pivotal connection inposition to bear. against the inner end of the box I), as shown in Fig.3. If, now, the operators foot is placed upon the treadlcboard J todepress the levers J J, the rods K will be moved upward, carryingtherewith the boxes 0 c, and consequently the feed-roll F, mountedtherein, and thus removing said feed-roll from contact with the ski 11,which rests upon and is partially wrapped around the roll D. The sameupward move ment of the rods K causes a movement of the elbow-levers Mabout their pivots g in the direction indicated by the arrow, and thearms h of said levers impinging upon the boxes 0 0 move them, and withthem the bed-roll D, mounted therein, away from the knife-cylinder,leaving the hide or skin free to be adjusted at will without danger ofinjury from the kni t'e-cylinder.

W hat I claim as new, and desire to secure by Letters Patent of theUnited States, is-

In combination with the cylinder 0, bed-roll D, and feed-roll F,arranged relative to each other, as set forth, the treadle J J, the rodsK, provided with lugs or pins f, the elbow-levers M, and the boxes I) band c c, all arranged and adapted to operate substantially as and forthe purposes described.

Intestimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 5th day of February, A.D. 1883.

ARTHUR E. \VHITNEY.

lVitnesses d E. A. HEMMENWAY, \VALTER E. LOMBARI).

